Предмет: Математика, автор: smdreamouzcbc

Найти общее решение однородных дифференциальных уравнений.
1. 2xdy-(2x+1)tg(3y)dx=0

2. xy'+x^2=3y

Ответы

Автор ответа: ivanspraguepaar7t
2

Ловите решение. Первое ДУ с разделяющимися переменными, второе ЛНДУ. Во втором случае применяем метод вариации произвольной постоянной.
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Задания

B. Which of these sentences are true? Write the correct ones down.

1. Ethel often borrowed things.

2. Fanny often borrowed things 3. Ethel often lent things to Fanny.

4 Fanny often lent things to Ethel 5. One day Ethel lost her bag

6. One day Fanny lost her bag

7. Fanny liked carrying something in her hand 8. Fanny did not like carrying things.

9. There was a shed at the end of Ethel's garden.

10. There was a shed at the end of Fanny's garden.

C. Write this story, but do not put pictures: put words.

Ethel's house is in a small

It has a small

at the back, and there is a

in it Ethel keeps her

there. Ethel is a clever

She works in a

This is Ethel. She is at the

of her house, and she's got a

in her left

because she is going to the
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